Sometime back I heard thereís a company that supplies a fuel injection kit for existing Rotax carburetor engines. Iím not a fan of carburetors and especially dual ones - floats, balancing, dual controls, etc. itís kinda like having two engine tied to the same crankshaft.
Has anyone modified the carburetor engine to fuel injection on the RV-12?
Iím cautious but interested if itís ever proved to be successful.

Edge Performance offers an EFII system. It’s very similar to the current EFI/EFII systems that are currently being offered for our Lycoming based engines. After I’m finished building my current RV-7 project I’m planning on building a Rans S-7 backcountry/STOL airplane and it’ll definitely have an Edge Performance turbo/EFII. Like Tom said though, it’s more to it than than just changing to fuel injection....there’s also some plumbing involved which includes return lines. I’m not sure if the 12 has a header tank or not but if it does, it may simplify the plumbing a little bit.

You will need a return line to the tank and you'd have to check cowling clearance for the manifold and injectors. The manifold may interfere with other accessories We've done installations on several other airframes but never done an RV12 before. We would be interested in working with people who'd like to ditch the carbs. We have a couple of different manifold designs we could offer.

If there's some reasonable interest in an EFI conversion for RV-12s we'd be willing to produce custom parts to make a standard installation easier for everyone- the same as we've done for Lycoming, Continental, Jabiru, Rotax and several popular auto conversions for many years.

I don't see any show stoppers putting EFI on a -12.

We'd want to find the best location for the fuel pumps, fuel pressure regulator, have a solution for the return line, throttle cable brackets and develop an intake manifold which clears everything we need to clear.

Excellent points Ross, which I was attempting to to across to Larry. Plumbing, wiring, ECU's, pumps, filters, etc all have to be planned and locations thought out. Similar to changing from a RV12 to a RV12IS---lots of differences!

Excellent points Ross, which I was attempting to to across to Larry. Plumbing, wiring, ECU's, pumps, filters, etc all have to be planned and locations thought out. Similar to changing from a RV12 to a RV12IS---lots of differences!

Tom

Yes and the best way to do all this is to standardize so it works the same for everyone and we can write better documentation for the install.

If there's some reasonable interest in an EFI conversion for RV-12s we'd be willing to produce custom parts to make a standard installation easier for everyone- the same as we've done for Lycoming, Continental, Jabiru, Rotax and several popular auto conversions for many years.

I don't see any show stoppers putting EFI on a -12.

We'd want to find the best location for the fuel pumps, fuel pressure regulator, have a solution for the return line, throttle cable brackets and develop an intake manifold which clears everything we need to clear.

What would an EFI system cost for 912ULS conversion? Might as well start there to gage interest...

The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.